Pigrons are a Hard Mode enemy that resembles flying pigs. They spawn in the Underground Snow Biome when it is overlapped with The Corruption, The Crimson, or The Hallow. There are three variations: red ones spawn in or near The Crimson, purple ones spawn in or near The Corruption, and pink ones spawn in or near The Hallow. They can enter a state where they become transparent and very hard to see, but as they attack you they will become visible again. They can travel through walls only while transparent.

Trivia

Though it may only be a coincidence, the Pigron bears a strong resemblance to the charabom Pommy Dragon from the Bomberman series.

The name 'Pigron' is from a Terraria player after Redigit asked a question in IRC chat 'What would a half-pig half-dragon be named?' before 1.2 came out.

Bugs

Due to a bug it's possible to see red Pigrons in The Corruption and purple Pigrons in The Crimson.